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 Brain Freeze
Science Seeker
The Amazing Human Body
Text and photos WINNIE LEUNG

Your body is made of trillions of tiny life units called cells. Cells of the same type form tissues, tissues form organs, and related organs link together to form different systems. The body is like a complicated machine, and many systems work together to keep it running smoothly. Bones, muscles, nerves, organs, blood – these are all parts of the body systems that keep you breathing, moving, standing, thinking and growing.

MUSCLES
Every time you move, you need your muscles. We even depend on them to sit still – without them, we’d slump over. Muscles are bundles of fibres that tense and relax to move different body parts. Some are voluntary muscles, which you can control, and others, such as your heart, are involuntary and work automatically.

THE SKELETON
A skeleton made of 206 bones supports the human body. It is a strong framework that acts as an anchor for muscles, skin and other tissues while also protecting soft internal organs like the brain and heart. Bones are linked together by a rubbery material called cartilage, and joints allow the bones to move.
 
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